Mitsubishi Electric GOT2000 Series User Manual page 147

Error message
The specified CPU drive cannot be
used. Please check the drive.
PLC types of the program (file
name) and the connected PLC are
not the same. Perform PLC Read
and read the data again.
The program before modification
on the GOT and the program being
registered on the CPU do not
match. Please perform PLC Read
and read the program again.
Failed to write the value to the
device.
Parameter file is corrupted. The
ladder editor cannot be used.
The file has invalid date or
timestamp.
Please check the GOT clock data.
Communication of the online
debug function failed.
Specified contents of the online
debug function are invalid.
An error occurred when verifying
the specified program and the
program in the CPU.
Please read the file again.
END instruction cannot be written
to a CPU module while the module
is running.
Reserved area for online change is
insufficient.
Online change cannot be
performed.
There are instructions that cannot
be handled in the CPU.
The step to be written is invalid.
The instruction that was written
during online change is invalid.
The number of blocks to be written
by online change is invalid.
Description
The specified drive of the PLC CPU
does not exist.
The PLC CPU type of the program file
stored in the data storage differs from
the connected PLC CPU type.
When a program is written into the
PLC, the target file does not exist in
the PLC CPU, or the type of the
program differs from that of the target
file.
The GOT cannot write device values
to the PLC CPU with the device test.
The GOT cannot read parameters
from the PLC CPU.
• The date of the GOT is wrong.
• PC writing or online change is
executed to Q00JCPU, Q00CPU,
or Q01CPU when the date of the
GOT is Feb. 29th.
Communication of the online debug
function failed.
Specified contents of the online
debug function are invalid.
The sequence program after
modification of the online change
operation differs from the program
before modification.
The END instruction is inserted or
deleted by the online change.
The file capacity is exceeded by the
online change.
An instruction, which is not
compatible with the CPU type set in
the project, exists in the sequence
program executing the online change.
• The step to be written is invalid.
• The start position of the online
change was not specified with a
correct program step No.
The instruction of the online change is
wrong.
Block size error (The number of the
online change is invalid.)
4.10 Error Messages and Corrective Action
Corrective action
Read data from the PLC, and check if the specified
drive exists.
Read a program file that exists in the PLC CPU.
Read a program file that exists in the PLC CPU
Read the program being displayed from the PLC
again.
Write the parameters to the PLC CPU by using GX
Works2/GX Developer.
• Set the date of the GOT properly.
• When executing PC writing or online change to the
Q00JCPU, Q00CPU, or Q01CPU, set the date of
the GOT other than Feb. 29th.
• Execute after registering the online debug function
(online change, trace, monitor with conditions,
etc.) in GX Works2/GX Developer.
• Execute after confirming the communication path
such as communication cables.
• Execute after registering the online debug function
(online change, trace, monitor with conditions,
etc.) in GX Works2/GX Developer.
• Execute after confirming the communication path
such as communication cables.
Execute the online change after executing PLC read
to equalize the sequence program of the GOT and
PLC CPU by PLC read.
• Check the contents of the specified sequence
program file.
• Write the program after setting the PLC CPU to the
stop status.
• Check the capacity of the specified sequence
program file.
• Write the program after setting the PLC CPU to the
stop status.
• Check if the PLC CPU type is correct.
• Check the sequence program and delete the
invalid instruction.
• Write the program after setting the PLC CPU to the
stop status.
• Check if the GX Works2/GX Developer is
compatible with the CPU type and CPU version
set in the project.
• Execute the online change again.
• Write the program after setting the PLC CPU to the
stop status.
Check the number of the block for the online change.
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